Stick Electrodes Lincoln Electric KRYO 1

Lincoln Electric Kryo® 1 Stick Electrode – low-alloy basic electrode for cryogenic applications

The Kryo® 1 from Lincoln Electric is a low-alloy, basic stick electrode for demanding welding work on steel structures where high mechanical quality values and very good notch impact toughness are required, even at low temperatures. It is particularly suitable for applications where the weld metal must remain reliably resilient even under cold stress.

Due to its excellent mechanical properties, very low hydrogen content, and suitability for both alternating current (AC) and direct current (DC), the Kryo® 1 is a high-performance electrode for professional use in steel construction, plant engineering, tank construction, the offshore sector, and other safety-relevant applications.

Properties

The Kryo® 1 impresses with very good mechanical properties with high toughness down to -60 °C. In addition, it offers good CTOD properties down to -10 °C and an extremely low hydrogen content. The recovery rate is approx. 110–120 %, which allows for economical processing.

The electrode can be used with both AC and DC and is suitable for all welding positions, with the exception of vertical down.

Technical Advantages

• Very good notch impact toughness down to -60 °C

• Good CTOD properties down to -10 °C

• Extremely low diffusible hydrogen content

• Recovery rate approx. 110–120 %

• Weldable with AC and DC

• Suitable for all positions, except vertical down

• Suitable for high-quality welded joints on low-alloy steels

• Approvals include ABS, LR, BV, DNV, TÜV, and DB

Classification

The Kryo® 1 is classified according to the following standards:

AWS A5.5: E7018-G-H4R
EN ISO 2560-A: E 50 6 Mn1Ni B 32 H5

Current Type and Polarity

The electrode can be welded using the following current types:

AC / DC (+/-)

This makes the Kryo® 1 versatile and capable of being processed on both AC and DC welding machines.

Welding Positions

The Kryo® 1 is suitable for all welding positions, with the exception of vertical down.

Typical Chemical Analysis of All-Weld Metal

Element	Typical Value
C	0.05 %
Mn	1.5 %
Si	0.4 %
P	0.010 %
S	0.010 %
Ni	0.9 %
Diffusible Hydrogen	2 ml / 100 g

Mechanical Quality Values of All-Weld Metal

Typical values in the as-welded condition:

Property	Typical Value
0.2 % Proof Stress	550 MPa
Tensile Strength	640 MPa
Elongation	24 %
Notch impact toughness ISO-V at -20 °C	150 J
Notch impact toughness ISO-V at -60 °C	90 J

Typical values after stress-relief annealing at 580 °C / 15 h:

Property	Typical Value
0.2 % Proof Stress	460 MPa
Tensile Strength	550 MPa
Elongation	24 %
Notch impact toughness ISO-V at -60 °C	90 J

Current Ranges

Diameter x Length	Current Range
2.5 x 350 mm	55–80 A
3.2 x 350 mm	80–140 A
3.2 x 450 mm	80–140 A
4.0 x 350 mm	120–170 A
4.0 x 450 mm	120–170 A
5.0 x 450 mm	180–240 A

Available Versions

Diameter x Length	Packaging	Electrodes / PU	Net Weight / PU	Item No.
2.5 x 350 mm	VPMD	110 pieces	2.1 kg	524383-2
3.2 x 350 mm	VPMD	54 pieces	2.0 kg	524390-2
3.2 x 450 mm	VPMD	54 pieces	2.5 kg	524437-2
4.0 x 350 mm	VPMD	37 pieces	2.0 kg	524468-2
4.0 x 450 mm	VPMD	37 pieces	2.6 kg	524499-2
5.0 x 450 mm	VPMD	23 pieces	2.5 kg	524475-2

Typical Applications

Typical Fields of Application

The Kryo® 1 is particularly suitable for welding work requiring high standards of strength, toughness, and cold safety. Typical fields of application include:

• Steel construction and heavy steel construction

• Plant engineering

• Pressure vessel and pipeline construction

• Offshore and shipbuilding applications

• Structures subject to cryogenic temperatures

• Components with high notch impact toughness requirements

• Welded joints on low-alloy steels

Application Note

The specified mechanical values are based on test welds produced and tested according to standards. Actual practical results may vary depending on the base material, joint preparation, welding parameters, heat input, and manufacturing conditions. For safety-relevant applications, the suitability of the filler material should be confirmed through appropriate procedure qualification tests.

Conclusion

The Lincoln Electric Kryo® 1 is a high-quality basic stick electrode for low-alloy steels with excellent cryogenic properties. Thanks to its very low hydrogen content, high notch impact toughness down to -60 °C, good CTOD values, and flexible AC/DC compatibility, it is ideal for demanding welding tasks in professional steel, plant, and tank construction.

Product Safety and Documents

Manufacturer

Lincoln Electric Deutschland GmbH

Industriestr. 12

Postbox 12 60 · 67299 Eisenberg

67304 Eisenberg

Germany

Phone: +49 6351 476 0

Web: https://www.lincolnelectric.com/de-DE/

Product Identification

• 2.5 x 350 mm 2.1 kg / 116 pcs vacuum-packed · Art. No. 524383-2 · EAN 524383-2
• 3.2 x 350 mm 2 kg / 54 pcs vacuum-packed · Art. No. 524390-2 · EAN 524390-2